Since this is in the drum room, what are the pros of having this outside of playing melodic percussion as it relates to 'standard' drumset playing?
With marimbas, vibraphones, etc, they are already tuned (with the exception of the tympani, as they sometimes have to readjust during the piece), and you don't need to guess what key you're playing in, as what you need to play is on the 'paper'. Are there many situations in which you have to tune a drum to an indefinite pitch (note that drums are not capable of having a definite pitch like the tympani, but I digress as that is a different topic altogether)?
Will it improve your playing ability, or is it a nifty thing to have as a drummer?